package com.itheima.bos.web.action;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;

import org.apache.commons.lang3.StringUtils;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Namespace;
import org.apache.struts2.convention.annotation.ParentPackage;
import org.apache.struts2.convention.annotation.Result;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Scope;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.stereotype.Controller;

import com.itheima.bos.domain.base.Area;
import com.itheima.bos.service.base.AreaService;
import com.itheima.bos.utils.PinYin4jUtils;
import com.itheima.bos.web.common.action.BaseAction;

@ParentPackage(value="json-default")
@Namespace("/")
@Scope("prototype")
@Controller
public class AreaAction extends BaseAction<Area>{
	
	
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	@Autowired
	private AreaService areaService;
	private File file;
	
	public void setFile(File file) {
		this.file = file;
	}

	@Action(value="area_import")
	public String batchImport() throws  IOException{
		List<Area> areas= new ArrayList<Area>();
		@SuppressWarnings("resource")
		Workbook workbook = new HSSFWorkbook(new FileInputStream(file));
		Sheet sheet = workbook.getSheetAt(0);
		for (Row row : sheet) {
			if (row.getRowNum()==0) {
				continue;
			} 
			if(row.getCell(0)==null||StringUtils.isBlank(row.getCell(0).getStringCellValue())){
				continue;
			}
			Area area = new Area();
			area.setId(row.getCell(0).getStringCellValue());
			area.setProvince(row.getCell(1).getStringCellValue());
			area.setCity(row.getCell(2).getStringCellValue());
			area.setDistrict(row.getCell(3).getStringCellValue());
			area.setPostcode(row.getCell(4).getStringCellValue());
			// 基于pinyin4j生成城市编码和简码
			String province = area.getProvince();
			String city = area.getCity();
			String district = area.getDistrict();
			province = province.substring(0, province.length() - 1);
			city = city.substring(0, city.length() - 1);
			district = district.substring(0, district.length() - 1);
			// 简码
			String[] headArray = PinYin4jUtils.getHeadByString(province + city
					+ district);
			StringBuffer buffer = new StringBuffer();
			for (String headStr : headArray) {
				buffer.append(headStr);
			}
			String shortcode = buffer.toString();
			area.setShortcode(shortcode);
			// 城市编码
			String citycode = PinYin4jUtils.hanziToPinyin(city, "");
						area.setCitycode(citycode);
			areas.add(area);
		}
		areaService.saveBatch(areas);
		return NONE;
	}
	

	@Action(value="area_pageQuery",results={@Result(name="success",type="json")})
	public String pageQuery(){
		Pageable pageable  = new PageRequest(page-1,rows);
		//构建条件查询
		Specification<Area> specification = new Specification<Area>() {
			@Override
			public Predicate toPredicate(Root<Area> root, CriteriaQuery<?> query, CriteriaBuilder cb) {
				List<Predicate>list = new ArrayList<Predicate>();
				if(StringUtils.isNotBlank(model.getProvince())){
					Predicate p1 = cb.like(root.get("province")
							.as(String.class), "%" + model.getProvince() + "%");
					list.add(p1);
				}
				if(StringUtils.isNotBlank(model.getCity())){
					Predicate p2 = cb.like(root.get("city")
							.as(String.class), "%" + model.getCity() + "%");
					list.add(p2);
				}
				if(StringUtils.isNotBlank(model.getDistrict())){
					Predicate p3 = cb.like(root.get("district")
							.as(String.class),"%" + model.getDistrict() + "%" );
					list.add(p3);
				}
				
				return cb.and(list.toArray(new Predicate[0]));
			}
		};
		Page<Area> pageData=areaService.findPageData(specification,pageable);
		pushPageDataToValueStack(pageData);
		
		return SUCCESS;
	}
}
